Telescopic and adjustable casting size go gauge inspection tool

Abstract

The utility model discloses a casting size go gauge inspection tool capable of being telescopically adjusted, which comprises four outer pipes arranged in a square frame structure, telescopic structures are respectively arranged in the four outer pipes, the end parts of the telescopic structures in the adjacent outer pipes are fixedly connected with corner pipes, each telescopic structure comprises a gear, a rotating shaft, a first knob and a toothed plate, a rotating shaft is fixedly connected in the gear, toothed plates are arranged on the two sides of the gear in the diagonal direction respectively, and the toothed plates are connected with the gear in an engaged mode; according to the utility model, through the gear-toothed plate transmission telescopic structure and the design of double scale marks, the flexible adjustment and accurate calibration of the dimensions in the length and width directions are realized, diversified casting dimension standards can be rapidly adapted, a traditional single-dimension gauge is replaced, the number of gauges is obviously reduced, and the production efficiency is greatly improved; through a locking structure of a fastening bolt and a V-shaped friction groove, and through cooperation with the stable design of a dovetail-shaped guide groove, it is ensured that the size is constant and does not deviate in the detection process, and the accuracy and reliability of a detection result are ensured.

Description

Technical Field

[0001] This utility model relates to the field of casting dimension inspection technology, specifically a retractable and adjustable casting dimension gauge inspection tool. Background Technology

[0002] In the casting manufacturing industry, dimensional accuracy is a key factor determining product quality and assembly compatibility. With the diversification of market demands, different customers have imposed stringent standards on casting dimensions, especially for assembly-related parts. Discrepancies between dimensions and drawings can easily lead to component interference, severely hindering the smooth progress of the assembly process. However, due to the complex and diverse range of casting dimensions, customizing inspection fixtures for each dimension would not only significantly increase the number of fixtures but also lead to cumbersome usage processes, increased management difficulty, and a serious impact on production efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a retractable and adjustable gauge for inspecting the dimensions of castings, in order to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A retractable and adjustable gauge for inspecting casting dimensions includes four outer tubes arranged in a square frame structure. Each of the four outer tubes has a telescopic structure inside, and the ends of the telescopic structures in adjacent outer tubes are fixedly connected to corner tubes.

[0006] As a further embodiment of this utility model: the outer tube is a rectangular tubular structure, and a telescopic structure is provided inside the outer tube. The telescopic structure includes a gear, a rotating shaft, a first knob, and a toothed plate. The rotating shaft is fixedly connected inside the gear. The rotating shaft is rotatably connected to the center of the outer tube through a bearing. The upper end of the rotating shaft passes through the outer tube and is fixedly connected to the first knob. Toothed plates are provided on both sides of the gear along the diagonal direction, and the toothed plates are meshed with the gear.

[0007] As a further embodiment of this utility model: limiting bosses are fixedly connected to the inner sidewalls at both ends of the outer tube, and limiting blocks are fixedly connected to the toothed plate. The limiting bosses and limiting blocks cooperate to limit the movement range of the toothed plate.

[0008] As a further embodiment of this utility model: a friction groove is provided on the upper surface of the toothed plate along the length direction. The cross-section of the friction groove is V-shaped. Threaded holes are provided at the relative positions of the two ends of the top surface of the outer tube. Fastening bolts are threaded into the threaded holes. A second knob is provided at the upper end of the fastening bolt, and a friction part is provided at the lower end. The friction part is a V-shaped structure adapted to the friction groove. Anti-slip textures are provided on the surfaces of both the friction groove and the friction part.

[0009] As a further improvement of this utility model: the first knob is provided with a scale mark, the corresponding position of the outer tube is provided with a first scale line, and the toothed plate is provided with a second scale line.

[0010] As a further improvement of this utility model: a guide groove is provided on the inner wall of the bottom surface of the outer tube. The guide groove is dovetail-shaped. A guide rail is fixedly connected to the bottom surface of the toothed plate. The guide rail is dovetail-shaped and matches the guide groove. The guide rail and the guide groove are slidably connected.

[0011] As a further improvement of this utility model, the first knob and the second knob are provided with anti-slip textures on their circumference.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: A telescopic and adjustable casting dimension gauge inspection tool, through a telescopic structure of gear-tooth plate transmission and a double scale marking design, realizes flexible adjustment and precise calibration of the length and width dimensions, can quickly adapt to diverse casting dimension standards, replace traditional single-dimensional gauges, significantly reduce the number of gauges, and greatly improve production efficiency; through the locking structure of fastening bolts and V-shaped friction grooves, combined with the stable design of dovetail guide grooves, it ensures that the dimensions remain constant and without deviation during the inspection process, guaranteeing the accuracy and reliability of the inspection results. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the initial state structure of a retractable and adjustable casting dimension gauge inspection tool.

[0014] Figure 2 This is a cross-sectional view of a retractable and adjustable gauge for inspecting the dimensions of castings.

[0015] Figure 3 This is a cross-sectional view of the telescopic structure in a telescopic adjustable gauge for inspecting the dimensions of castings.

[0016] Figure 4 This is a schematic diagram of the telescopic structure in a telescopic and adjustable gauge for inspecting the dimensions of castings.

[0017] Figure 5 This is a partial sectional view of the telescopic structure in a telescopically adjustable gauge for inspecting the dimensions of castings.

[0018] Figure 6 This is a schematic diagram of the structure of a retractable and adjustable casting dimension gauge inspection tool after dimension adjustment.

[0019] In the diagram: outer tube 1, telescopic structure 2, gear 21, rotating shaft 22, first knob 23, toothed plate 24, limiting boss 25, limiting block 26, friction groove 27, threaded hole 28, fastening bolt 29, second knob 291, friction part 292, scale mark 210, first scale line 211, second scale line 212, guide groove 213, guide rail 214, corner tube 3. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-6 In this embodiment of the utility model, a retractable and adjustable casting size gauge inspection tool includes four outer tubes 1 arranged in a square frame structure. Each of the four outer tubes 1 is provided with a telescopic structure 2, and the ends of the telescopic structures 2 in adjacent outer tubes 1 are fixedly connected with corner tubes 3.

[0022] The outer tube 1 is a rectangular tubular structure. A telescopic structure 2 is installed inside the outer tube 1. The telescopic structure 2 includes a gear 21, a rotating shaft 22, a first knob 23, and toothed plates 24. The rotating shaft 22 is fixedly connected inside the gear 21. The rotating shaft 22 is rotatably connected to the center of the outer tube 1 via bearings. The upper end of the rotating shaft 22 passes through the outer tube 1 and is fixedly connected to the first knob 23. Toothed plates 24 are provided on both sides of the gear 21 along diagonal directions, and the toothed plates 24 mesh with the gear 21. By rotating the first knob 23, the gear 21 is driven to rotate, and the gear 21 drives the toothed plates 24 to move linearly along the length of the outer tube 1, thereby allowing the toothed plates 24 to extend and retract within the outer tube 1, achieving adjustment of the length and width dimensions.

[0023] To prevent the toothed plate 24 from detaching from the outer tube 1 during extension, limiting bosses 25 are fixedly connected to the inner walls at both ends of the outer tube 1, and limiting blocks 26 are fixedly connected to the toothed plate 24. The limiting bosses 25 and the limiting blocks 26 cooperate to limit the range of motion of the toothed plate 24, ensuring the stability and safety of the toothed plate 24 during extension and retraction.

[0024] To ensure the stability of the inspection tool after adjustment, a friction groove 27 is provided along the length of the upper surface of the toothed plate 24. The cross-section of the friction groove 27 is V-shaped. Threaded holes 28 are provided at opposite positions on both ends of the top surface of the outer tube 1. Fastening bolts 29 are connected to the internal threads of the threaded holes 28. A second knob 291 is provided at the upper end of the fastening bolt 29, and a friction part 292 is provided at the lower end. The friction part 292 is a V-shaped structure adapted to the friction groove 27. The surfaces of both the friction groove 27 and the friction part 292 are provided with anti-slip textures.

[0025] To facilitate more convenient and precise size adjustment, a scale mark 210 is provided on the first knob 23, and a first scale line 211 is provided at the corresponding position on the outer tube 1. By observing the correspondence between the scale mark 210 on the first knob 23 and the first scale line 211 on the outer tube 1, the adjusted size of the telescopic structure 2 can be accurately determined, facilitating quick and accurate reading of dimensional data. A second scale line 212 is provided on the toothed plate 24. When the toothed plate 24 is extended, the size of the inspection tool can be clearly read through the second scale line 212, achieving dual calibration and more intuitively and accurately determining the size of the inspection tool.

[0026] To ensure more stable movement of the toothed plate 24 in the telescopic structure 2, a guide groove 213 is provided on the inner wall of the bottom surface of the outer tube 1. The guide groove 213 is dovetail-shaped, and a guide rail 214 is fixedly connected to the bottom surface of the toothed plate 24. The guide rail 214 is also dovetail-shaped and matches the guide groove 213, and the guide rail 214 is slidably connected to the guide groove 213. By cooperating with the dovetail-shaped guide groove 213 and the guide rail 214, the wobbling of the toothed plate 24 is restricted, ensuring that it moves in a precise straight line along the length of the outer tube 1 and avoiding dimensional errors caused by offset.

[0027] To facilitate the rotation of the first knob 23 and the second knob 291, anti-slip textures are provided around the first knob 23 and the second knob 291. By increasing friction, the risk of slippage is reduced, and the convenience and reliability of operation are improved.

[0028] The working principle of this utility model is as follows: First, based on the theoretical dimensions of the casting to be inspected, observe the scale mark 210 on the first knob 23 and the first scale line 211 on the outer tube 1. By rotating the first knob 23, the gear 21 is driven to rotate, which drives the toothed plate 24 to extend or retract along the length of the outer tube 1, thus initially setting the length and width dimensions of the inspection tool. If further precise adjustment is required, fine-tuning can be performed using the second scale line 212 on the toothed plate 24. After confirming that the dimensions are correct, tighten the second knob 291 at the upper end of the fastening bolt 29, so that the V-shaped friction part 292 at the lower end of the fastening bolt 29 is tightly engaged with the V-shaped friction groove 27 on the toothed plate 24. Utilizing the friction generated by the anti-slip texture, the toothed plate 24 is fixed inside the outer tube 1, ensuring the stability of the inspection tool's dimensions. After that, the casting can be inspected.

[0029] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A telescopically adjustable gauge for inspecting the dimensions of castings, comprising four outer tubes (1) arranged in a square frame structure, characterized in that, Each of the four outer tubes (1) is equipped with a telescopic structure (2), and the ends of the telescopic structures (2) in adjacent outer tubes (1) are fixedly connected with corner tubes (3).

2. The adjustable casting dimension gauge inspection tool according to claim 1, characterized in that, The outer tube (1) is a rectangular tubular structure. The outer tube (1) is equipped with a telescopic structure (2). The telescopic structure (2) includes a gear (21), a rotating shaft (22), a first knob (23), and a toothed plate (24). The rotating shaft (22) is fixedly connected inside the gear (21). The rotating shaft (22) is rotatably connected to the center of the outer tube (1) through a bearing. The upper end of the rotating shaft (22) passes through the outer tube (1) and is fixedly connected to the first knob (23). Toothed plates (24) are provided on both sides of the gear (21) along the diagonal direction. The toothed plates (24) are meshed with the gear (21).

3. The adjustable casting dimension gauge inspection tool according to claim 2, characterized in that, Limiting bosses (25) are fixedly connected to the inner walls of both ends of the outer tube (1), and limiting blocks (26) are fixedly connected to the toothed plate (24). The limiting bosses (25) and the limiting blocks (26) cooperate to limit the movement range of the toothed plate (24).

4. The adjustable casting dimension gauge inspection tool according to claim 3, characterized in that, The upper surface of the toothed plate (24) is provided with a friction groove (27) along the length direction. The cross-section of the friction groove (27) is V-shaped. Threaded holes (28) are provided at the relative positions of the two ends of the top surface of the outer tube (1). Fastening bolts (29) are connected to the threaded holes (28) with internal threads. The upper end of the fastening bolt (29) is provided with a second knob (291), and the lower end is provided with a friction part (292). The friction part (292) is a V-shaped structure that is adapted to the friction groove (27). The surfaces of the friction groove (27) and the friction part (292) are provided with anti-slip textures.

5. The adjustable casting dimension gauge inspection tool according to claim 4, characterized in that, The first knob (23) is provided with a scale mark (210), the corresponding position of the outer tube (1) is provided with a first scale line (211), and the toothed plate (24) is provided with a second scale line (212).

6. The adjustable casting dimension gauge inspection tool according to claim 5, characterized in that, A guide groove (213) is provided on the inner wall of the bottom surface of the outer tube (1). The guide groove (213) is dovetail-shaped. A guide rail (214) is fixedly connected to the bottom surface of the toothed plate (24). The guide rail (214) is dovetail-shaped and matches the guide groove (213). The guide rail (214) is slidably connected to the guide groove (213).

7. The adjustable casting dimension gauge inspection tool according to claim 6, characterized in that, The first knob (23) and the second knob (291) have anti-slip textures on the circumference.

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